segmental arch meaning in English

弓形拱
弧拱
扇形拱

In summarizes the predecessor to the segmental arch surface and outside in flexure critical load computational method foundation , with the principle of the minimum potential energy , an analytical solution for the lateral critical bucking load of cable stayed arch bridge is studied
在总结前人对圆弧拱的面内,面外屈曲临界荷载计算方法的基础上,利用能量法,推导了斜拉拱桥的侧倾临界荷载计算公式。